Backend Staff Engineer

About DEUNA 🧡

DEUNA is a rapidly growing startup revolutionizing global commerce with ATHIA, our AI-powered orchestration and payments platform that helps large enterprises boost approval rates, reduce costs, and unlock new revenue. Built by the team behind DEUNA—the fastest-growing Commerce OS in Latin America—ATHIA combines payment intelligence, checkout optimization, and data orchestration in one powerful solution.

With deep integrations across 300+ PSPs and alternative payment methods, and over 20% of Mexico’s digital economy running through our platform, we simplify global payments through a single integration and centralized reconciliation.

We are a rapidly growing startup expanding into the U.S. to meet the urgent needs of large retailers, marketplaces, airlines, and QSRs. Join us to shape the future of payments! 🚀

Visit https://www.deuna.com/ to learn more about us!

Role Overview

We are looking for a Backend Staff Engineer to lead the design and development of scalable backend systems.

This role is focused on building high-quality, reliable services, improving system performance, and guiding engineering teams through technical decisions. You will work closely with Engineering Managers and Product teams to deliver robust backend solutions.

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Key Responsibilities

Backend Development & Architecture

• Design, build, and maintain backend services and APIs.

• Develop scalable and secure distributed systems.

• Define and implement best practices for performance and reliability.

Technical Leadership

• Provide technical guidance to engineering teams.

• Participate in architecture discussions and design decisions.

• Improve development standards and documentation.

System Optimization

• Identify and resolve performance bottlenecks.

• Implement improvements in scalability, monitoring, and reliability.

• Design data models, caching strategies, and asynchronous processes.

Collaboration

• Work closely with Product and Engineering teams.

• Support the delivery of new features and system improvements.

• Ensure alignment between technical solutions and business needs.

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Requirements

• 8+ years of experience in backend development.

• Strong experience with:

  • Golang and/or Python

• Experience working with:

  • Distributed systems

  • REST or GraphQL APIs

  • Event-driven architectures

• Experience with AWS or similar cloud platforms.

• Knowledge of:

  • SQL and NoSQL databases

  • Caching (Redis or similar)

  • Messaging systems

• Understanding of security best practices.

• Strong problem-solving skills.

• Good communication skills.

• English is a plus.

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Nice to Have

• Experience in fintech, payments, or e-commerce platforms.

• Experience with high-traffic systems.

• Knowledge of compliance and security standards.